PURPOSE: To improve initial orientability by providing plural structural members having side walls to one substrate into a stripe shape, subjecting the other substrate to an orientation treatment in the direction parallel with or perpendicular to the extension direction of said members and using a specific liquid crystal compsn. CONSTITUTION: The structural members 104 having the stripe-shaped side walls 106, 107 are disposed to one substrate 101 of a pair of the electrode substrates 101, 110. The other substrate 110 is subjected to a uniaxial orientation treatment and the treatment direction thereof is controlled to the direction parallel or orthogonal with the extension direction of the members 104. The liquid crystal compsn. incorporated therein with one kind of a liquid crystal of which the phase transfers from a Ch phase to an SmA phase and Sm* phase in the course of a temp. fall and at lest one kind of a liquid crystal of which the phase transfers from an isotropic phase to the Ch phase and liquid crystal phase or from the isotropic phase to the Ch phase, Sm phase and crystal phase in the course of the temp. fall is used. The liquid crystal element made into the construction in which the operation of the element based on the bistability of the ferroelectric liquid crystal and the mono-domain characteristic of the liquid crystal layer are compatible is obtd. by such constitution and the defect at the spacer edge is eliminated even in the storage state in which the defect is particularly liable to appear. COPYRIGHT: (C)1986,JPO&Japio

Liquid crystal element

An image-forming device has a plurality of cylindrical image-carrying members, and an optical scanning unit. The plurality of cylindrical image-carrying members is provided in a main casing for rotating about respective rotational axes. The rotational axes are parallel to one another and juxtaposed in a single direction. The optical scanning unit is provided in the main casing and has a plurality of laser generators, a single rotatable polygon mirror, a plurality of mirrors, and a plurality of lenses. The plurality of laser generators is provided one-to-one relationship to the plurality of image-carrying members to emit respective laser beams. The single rotatable polygon mirror deflects the respective laser beams to scan the respective image-carrying members therewith. The plurality of mirrors is provided one-to-one relationship to the plurality of image-carrying members to guide the respective laser beams along respective optical paths to the respective image-carrying members. The plurality of lenses is provided one-to-one relationship to the plurality of image-carrying members and provided in the respective optical paths and between the respective mirrors and the respective image-carrying members. Distances from the respective mirrors to the respective image-carrying members being equal to one another.

Image-forming device

Two electric fields that are directed to respective directions rectangular relative to each other are selectively applied to polymer dispersed liquid crystal by means of electrodes arranged to sandwich the polymer dispersed liquid crystal and electrodes arranged along a substrate to uniformly orient the liquid crystal in either of the directions. While conventional polymer dispersed liquid crystal is adapted to utilize scatter of light in a randomly oriented state, the polymer dispersed liquid crystal of this invention is adapted to utilize a uniformly oriented state to improve the efficiency of scattering light. The present invention is also applicable to devices where polymer dispersed liquid crystal has a memory property.

Liquid crystal device

A liquid crystal display apparatus includes a first liquid crystal display panel, a second liquid crystal display panel smaller in area than the first liquid crystal display panel. A flat backlight has an optical waveguide and a point light source placed near one side surface portion of the optical waveguide, and is placed between the first liquid crystal display panel and the second liquid crystal display panel. One reflecting layer is placed at least between the flat backlight and the second liquid crystal display panel.

Liquid crystal display apparatus having display panels on both upper and lower surfaces

PURPOSE:To prevent a packing bag from being damaged even if a heavy photosensitive material is packed by using a laminated film comprising a specified multilayered co-extruded film, a layer of an expanded resin sheet, and a layer of flexible sheet. CONSTITUTION:A packing bag comprises a laminated multilayered co-extruded film 3, a layer 4 of an expanded resin sheet, and a layer 5a of flexible sheet. The layer 3 is formed as the innermost layer contacting with a photosensitive material having >=200mum total thickness and contg. 0.5-50g/m light shielding material. The layer 3 consists of a high density polyethylene layer 1a having 0.951-0.980g/cm density, 0.1-3.0g/10min melt index, and 20-80mum thickness, and a layer 2 of low density polyethylene obtd. by copolymerizing ethylene with >=6C alpha-olefin and having 0.870-0.931g/cm density, 0.5-5.0g/10min melt index, and 15-80mum thickness. The layer 4 has density and the thickness is regulated to 0.1-2mm. These layers 3, 4, 5a are laminated with the adhesive layers 6 interposed therebetween.

Packing bag for photographic sensitive material

PURPOSE:To prevent the damage of a can without increasing the size of a motor by partitioning a chamber between a frame and the can be an elastic material, and connecting one chamber with the periphery of a rotor or out of the frame. CONSTITUTION:A lower bracket 7 is axially connected via a connecting hole 21. One side of the hole 21 is connected with a room 23 in a cylinder 22 of one end side of a thrust case 15. A lower collar 5 is axially connected with a connecting hole 21 via a connecting hole 24. Doughnut-shaped metal bellows 25 is watertightly connected with a lower collar 5, disposed in chamber 26 between a frame 1 and a can 3, and the interior is connected with the hole 24. Even if the volume of insulating oil B is large and expanded, the interior of the bellows 25 disposed in the chamber 26 is connected through the holes 21, 24, the chamber 23 and a connecting slot 11 with the periphery of a rotor 12. Accordingly, the bellows 25 can elongate or contract due to the pressure difference between the pressure of the periphery of the rotor 12 and the pressure in the chamber 26, and the pressure difference is absorbed.

Liquid-sealed motor

PURPOSE:To watertightly dispose connecting wirings in a simple construction by providing a hollow connecting member watertightly coupled at both ends to a pair of collars, and passing the wirings from one to the other of a plurality of canned motors in the member. CONSTITUTION:A hollow connecting tube 28 is watertightly coupled through a bolt 30 to collars 29 of both ends to the collar 9 of an intermediate bracket 8. The connecting wirings 27 of a pair of stators 2 are connected in the state that a connecting tube 28 is passed, and the tube 28 is then watertightly coupled to the collar 9 together with a packing 31. Thus, the wirings can be watertightly disposed in a remarkably simple construction.

Canned tandem type motor

PURPOSE:To improve cooling effect by forming a slot for axially communicating the outer periphery of a stator at the stator, and filling and hardening resin in the slot, thereby increasing the contacting area of the outer periphery of the stator and the frame. CONSTITUTION:A slot 21 which is connected from the upper end with the lower end is formed at the outer periphery of a stator 2. A seal ring 22 is engaged within a frame 1 to seal the slot 21 by the lower end face of the stator 2. After the interior of a can is evacuated in vacuum by a vacuum unit through a penetrating hole of an upper collar 4, resin 24 is filled upwardly through the hole of a lower collar 5. The resin 24 is filled in the slow 21. After excess resin is exhausted from the lower penetrating hole, the resin is heated and cured. The heat of the stator 2 is transferred through the outer periphery of the stator 2 and the resin 24 to the frame 1.

Liquid-sealed motor and manufacture thereof

PURPOSE:To prevent the abnormal deformation of a can to a rotor side without employing a special structure by sealing insulating oil to the periphery of a stator in a heated state. CONSTITUTION:When insulating oil B is sealed around a stator 2, the oil B is first heated before sealing. The heating temperature is set to the rising temperature at the operating time of the stator 2. Then, the heated oil B is sealed from a hole of a female screw 21 in the state that the periphery of the stator 2 is evacuated in vacuum. After sealing, a plug 22 is engaged with the screw 21 and sealed. Even when the temperature is risen by the operation of a motor so that the oil B expands, the oil returns only to the state of the sealing time, and a can 3 is not deformed to the side of the rotor 12.

Manufacture of liquid-sealed motor

PURPOSE:To enhance the coupling strength of a laminated stator core by forming a plurality of moldings in the shape capable of coupling by any of welding and clamping and bonding a wedge. CONSTITUTION:Six grooves 1c are formed at an equal interval on the outer peripheral surfaces of stator cores 1 formed in the prescribed shape by a punching machine from silicon steel plate of the prescribed thickness. Welding grooves 1a are formed on the inner peripheral side of the groove 1c, and an engaging groove 1b is continuously formed on the outer peripheral side of the groove 1a. Six grooves 1a of the core 1 and a plurality of slots are disposed on the same axial line, laminated in the prescribed length, held, welded at the groove 1a, a clamp 3 is inserted as a wedge to form a laminated stator core 2.

Tokumitsu Kiyonori

Papers

Liquid-sealed motor

Canned tandem type motor

Liquid-sealed motor and manufacture thereof

Manufacture of liquid-sealed motor

Stator core of rotary electric machine and manufacture thereof